Creating a mutable ARRAY data type in sqlalchemy

something.py

class Something(Base):
    __tablename__ = 'yaddayadda'

    id = Column(Integer, primary_key=True)
    data = Column(MutableList.as_mutable(ARRAY(String(100))))

sqlal_mutable_array.py

from sqlalchemy.ext.mutable import Mutable
from sqlalchemy.dialects.postgresql import ARRAY

class MutableList(Mutable, list):
    def append(self, value):
        list.append(self, value)
        self.changed()

    @classmethod
    def coerce(cls, key, value):
        if not isinstance(value, MutableList):
            if isinstance(value, list):
                return MutableList(value)
            return Mutable.coerce(key, value)
        else:
            return value

This was super helpful, thank you! I added a pop method to the list so you can remove items from the list as well. Here's what I'm using right now:

class MutableList(Mutable, list):
  def append(self, value):
    list.append(self, value)
    self.changed()

  def pop(self, index=0):
    value = list.pop(self, index)
    self.changed()
    return value

  @classmethod
  def coerce(cls, key, value):
    if not isinstance(value, MutableList):
      if isinstance(value, list):
        return MutableList(value)
      return Mutable.coerce(key, value)
    else:
      return value

Hi there,
Do you have a simple working example of this?
Thanks